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5288 x86 bitmap inline asm functions duplicate code
@@ -34,83 +34,64 @@
extern "C" {
#endif
#if !defined(__lint) && defined(__GNUC__)
+#if defined(__amd64)
+#define __SUF "q"
+#elif defined(__i386)
+#define __SUF "l"
+#else
+#error "port me"
+#endif
+
extern __GNU_INLINE int
highbit(ulong_t i)
{
- long __value = -1l;
+ long value = -1l;
-#if defined(__amd64)
- __asm__(
- "bsrq %1,%0"
- : "+r" (__value)
- : "r" (i)
- : "cc");
-#elif defined(__i386)
__asm__(
- "bsrl %1,%0"
- : "+r" (__value)
+ "bsr" __SUF " %1,%0"
+ : "+r" (value)
: "r" (i)
: "cc");
-#else
-#error "port me"
-#endif
- return ((int)(__value + 1));
+
+ return ((int)(value + 1));
}
extern __GNU_INLINE int
lowbit(ulong_t i)
{
- long __value = -1l;
+ long value = -1l;
-#if defined(__amd64)
- __asm__(
- "bsfq %1,%0"
- : "+r" (__value)
- : "r" (i)
- : "cc");
-#elif defined(__i386)
__asm__(
- "bsfl %1,%0"
- : "+r" (__value)
+ "bsf" __SUF " %1,%0"
+ : "+r" (value)
: "r" (i)
: "cc");
-#else
-#error "port me"
-#endif
- return ((int)(__value + 1));
+
+ return ((int)(value + 1));
}
extern __GNU_INLINE uint_t
atomic_btr32(uint32_t *memory, uint_t bitnum)
{
- uint8_t __value;
+ uint8_t value;
-#if defined(__amd64)
- __asm__ __volatile__(
- "lock;"
- "btrl %2, (%0);"
- "setc %1"
- : "+r" (memory), "+r" (__value)
- : "ir" (bitnum)
- : "cc");
-#elif defined(__i386)
__asm__ __volatile__(
"lock;"
- "btrl %2, (%0);"
+ "btrl %2,%0;"
"setc %1"
- : "+r" (memory), "=r" (__value)
+ : "+m" (*memory), "=r" (value)
: "ir" (bitnum)
: "cc");
-#else
-#error "port me"
-#endif
- return ((uint_t)__value);
+
+ return ((uint_t)value);
}
+#undef __SUF
+
#endif /* !__lint && __GNUC__ */
#ifdef __cplusplus
}
#endif